Live, the 71-year-old folk-rock legend is a cantankerous sort, croaking and bleating the lyrics with bizarre rhythmic affectations, never addressing the crowd, re-working staples of his catalog and rendering them unrecognizable. Nowadays, his vocals, a mostly incomprehensible grumble, have more in common with Lemmy Kilmister and Tom Waits – indeed, he makes Waits sound like Christina Aguilera. If you’re lucky, you’ll understand every 16th word.